Triphasil-28 birth control tablets are taken sequentially, 1 tablet per day for 28 days, with the tablets containing the following: phase 1: 6 tablets, each containing 0.050 mg of levonorgestrel and 0.030 mg ethinyl estradiol phase 2: 5 tablets, each containing 0.075 mg of levonorgestrel and 0.040 mg ethinyl estradiol phase 3: 10 tablets, each containing 0.125 mg of levonorgestrel and 0.030 mg ethinyl estradiol then 7 inert tablets (no drug). how many total milligrams each of levonorgestrel and ethinyl estradiol are taken during the 28-day period?

1.925mg of levonorgestrel and 0.68mg of ethinyl estradiol are taken during the 28-day period.

Step-by-step explanation:

The total milligrams of levonorgestrel is:

In which and are the number of miligrams of levonorgestrel taken in each phase.

The total milligrams of ethinyl estradiol is:

In which and are the number of miligrams of ethinyl estradiol taken in each phase.

We can solve this by phase.

Phase 1: 6 tablets, each containing 0.050 mg of levonorgestrel and 0.030 mg ethinyl estradiol

In this phase,

of levonorgestrel and of ethinyl estradiol are taken.

So and

Phase 2: 5 tablets, each containing 0.075 mg of levonorgestrel and 0.040 mg ethinyl estradiol

In this phase,

of levonorgestrel and of ethinyl estradiol are taken.

So and

Phase 3: 10 tablets, each containing 0.125 mg of levonorgestrel and 0.030 mg ethinyl estradiol

In this phase,

of levonorgestrel and of ethinyl estradiol are taken.

So and

The total milligrams of levonorgestrel is:

The total milligrams of ethinyl estradiol is:

1.925mg of levonorgestrel and 0.68mg of ethinyl estradiol are taken during the 28-day period.